Improvement in loom-shuttles



M. LEARY. Loom-Shuttle.

No. 211,243. Pa tented Jan. 7, 1879.

mfness Java- 50v m1 www1 W UNITED STATES PATENT ()FFIGE.

MICHAEL LEARY, OF THREE RIVERS, MASSACHUSETTS.

IMPROVEMENT IN LOOM-SHUTTLES.

Specification forming part of Letters Patent No. 211,243, dated January7, 1879; application filed August 19, 1878.

To all whom it may concern:

Be it known that I, MICHAEL LEARY, of Three Rivers, county of Hampden,and Commonwealth of Massachusetts, have invented new and usefulImprovements in Loom-Shuttles, of which the following is aspecification:

This invention relates to means for threading an ordinary shuttle.

Heretofore the thread has most commonly been fed from the spool directlyto the eyelet. This has been found objectionable, as a constant wear ishad on the side of the eyelet nearest the spool, making it uneven, andthus affecting the tension. Heretofore, also. the thread has commonlybeen drawn through the eyelet by the operator placing his month over theeyelet-hole and sucking the thread through. This is very objectionable,first, because the eyelet-hole becomes filled with dust and lint in theeffort to draw the thread through, and this is drawn into the month andlungs, being a frequent cause of disease, besides being a disagreeableoperation. The shuttle also oftenbecomes besmeared with tobaccojuicefrom the mouth of one operative, making the threading operationdisgusting when this shuttle comes to the hands of another. Second,because of the loss of time, and, third, these holes are lined with claytubing, which is easily broken, causing expense of repair.

The object of my invention is to produce a shuttle which has none of theabove objectionable features, one that can be threaded in an instant bya motion of the hand, and that V will not be easily gotten out ofrepair.

-The invention consists in the arrangement in a shuttle of a pin overwhich the thread passes, and in the metal eyelet with slot and cover,and in the arrangement of the same in an ordinary shuttle.

In the accompanying drawing, in which similar letters of referenceindicate like parts, Figure 1 is a top view of the threader. Fig. 2 is aview of the lower side. Fig. 3 is an edge view, in section, throughdotted line w m, Fig. 1, of part below the line. Fig.4 is an edge view,in section, through dotted line y 3 Fig. 2, of part on left of line.Fig. 5 is a side view of a shuttle, with the device attached. Fig. 6 isa top view of the same, and Fig. 7 is a view of the screw or pin overoraround which the thread passes.

The construction of the wood part of the shuttle is the same as in theold style, except the eyelet end, in which the opening B (see Fig. 5) ismade large enough to take in pin D. On the top a recess is made deepenough to bring the top of the threader, when placed therein, flush withthe top of the shuttle-block. Directly below the slot 1) in threader(see Fig. 2) I make the cut m. (See Fig. 5.) The threader is held inplace by a screw or its equivalent.

I make disk 0 with slot and opening, as seen in Fig. 2. The lap or toppiece 0 has tongue n, which passes through the hole, as seen, and isriveted to hold the piece 0 in place; or this piece may be soldered tothe disk at one side. The piece 0 has also the projection a, whichpasses through the opening 0 and prevents the return of the thread. Fig.4 shows the shape of this projection, it being beveled on one side toallow of the passage of the thread, and straight on the other to preventits return.

.The tension is changed by varying the length of the slot 1) and heightof the piece 0. If the slot 1) is made shorter the tension is increased,or if the piece 0 is drawn closer to disk G the same result is obtained.

In threading the shuttle the thread P (see Fig, 5) is drawn taut, andheld close to the shuttle just above pin D. This projects high enough tocatch the thread when so placed. The thread is then drawn into slot mand under piece 0, allowing it to unwind from the bobbin at the sametime. The threading may be done with a single circular motion.

This device may be placed on any ordinary shuttle by making the changesstated.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. The combination of the shuttle, provided with pin D and slot m, withthe threader, consisting of plate (J, having slots 1) and e, and piece0, having projection a, substantially as set forth.

2. The piece or plate 0, provided with the MICHAEL LEARY.

Witnesses ALLEN WEBs'rEn, ANDREW Trrus.

